Start.
Don't feel alone. Every single job I have worked on since I was 14, I've been bored to death.
It may be two things, firstly, you haven't found your passion or secondarily you won't find the job you want, working for other people. For me Its the later (innovation, entrepreneur). I've grown up always analyzing how things could be better. Even today, I'll walk into a place and analyze how they could improve their business. For me its already programed. I'm not sure if other entrepreneurs think on a similar wave length, but it might help you understand who you are? If it helps, I didn't understand that I was an entrepreneur until I started to meet up with other young entrepreneurs, through events and networking nights.
Don't listen to what other people 'tell you' what you are. I often get laughed at, for telling people, I'm an entrepreneur "So what your unemployed" But to give you an idea, after talking with lots and lots of Entrepreneurs and business people, I've come to the conclusion, that you can't really define an entrepreneur. We have similar traits, but besides that we're all different, and all come from variety of different backgrounds and experiences. We are, but a product of our environment.
So the next process of thinking is; everyone has ideas, its only a few who act on them. If you have an idea that you thinking 'might work', stop thinking about it and go and do it. Don't analyze it for six-12 months, otherwise nothing will get done. Just Fucking do it. If you make mistakes, lose money, harden up. Its all part of the entrepreneurial journey. Failure by any-means is a great learning tool. Never see it as a bad thing, but something that you'll grown and develop from.
Since I've rambled on long enough, I suggest you do two things. Firstly, start to attend some local entrepreneur groups and events and talk with as many people as you can. Tell them your ideas and Essentially, 'pick their brains'. If you're not 100% comited to the idea, I suggest you go and do something that you're passionate about. It could be something as simple as bike riding. Don't judge it on the income basis, but for the pure satisfaction you get when you do it. As with anything in life, you can make money on it. You could be a Plumber and turn your business into a multi million dollar distribution business or construction company. The sky is the limit. Find what you love and you'll never 'work' a day in your life.
I hope this helps?
One last thing. Just fucking do it.